Some days the blogosphere echos with a common theme. Consider these links:
Start off with Karen Hall's explanation of why we should worry about the creeping socialism offered by Obama.
Then take a look at Fr. Z's stirring video and commentary.
Finally, pay heed to Fr. Neuhaus at First Things.
Then when you are done with all that, get to your knees in prayer, put on the armor of God,and follow St. Michael into battle.